Official NHA Assessment

Race 4: Catch KZN Racing via live streaming on www.galloptv.co.za MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Blowin In The Wind
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 8
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Blowin In The Wind   3    59.0    1    0.00     7.5   76    76           76    +0
2    Amafort              3    59.0    2    0.10     7.5   -     76           76    +76
3    Littleblackgem       3    57.5    3    1.15     7.5   72    73           73    +1
4    Chakpori             3    59.0    4    1.95     7.5   75    76           76    +1
5    Roy's Grace          4    60.0    5    7.35     9.0   -     75           75    +75
6    Roy's Ranger         3    59.0    6    13.45    7.5   -     76           76    +76
7    Lady Platina         3    55.0    7    14.45    7.5   37    68           68    +31
99   Sunka Wakan          2    55.0    99   0.00     5.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Blowin In The Wind Line 76 63 76 -13 7.5
2 Amafort - 61 76 -15 7.5 -
3 Littleblackgem 72 61 73 -12 7.5 -
4 Chakpori 75 64 76 -12 7.5 -
5 Roy's Grace - 63 75 -12 9.0 -
6 Roy's Ranger - 40 76 -36 7.5 -
7 Lady Platina 37 37 68 -31 7.5 -
99 Sunka Wakan - 58 73 -15 5.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points